18-3324 Water Pump Kit for Mercury/Mariner Outboard Motors
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SIERRA18-3324 Water Pump Kit for Mercury/Mariner Outboard Motors


In stock online.
Model # 1657642 | Mfg # 18-3324UPC # 30999315861


18-3324 Water Pump Kit for Mercury/Mariner Outboard Motors

Name Value
Compatibility Mercury Marine, Mercury Marine 46-77177A3
Type Water Pump Kits

Product Overview

Service the water pump and make the most of the boating season

Starting the season with a freshly serviced water pump will pay dividends later when the sun is out and the fish are biting. A water pump impeller that has sat idle for the winter or one that is worn from year-round use can reduce cooling water flow and cause an engine to overheat. Servicing the water pump annually (at the least) will keep you on the water longer.

For 50 years Sierra has been assembling water pump kits designed to meet or exceed manufacturer specifications. Each kit includes everything needed to restore water pump function and eliminates the hassle of searching for and sourcing the individual parts. Boaters and technicians can be assured Sierra parts will fit right the first time and restore function to OEM or better standards.

Key Features

  • Engineered to meet or exceed OEM specifications
  • Pre-assembled kit eliminates extra time spent sourcing individual parts
  • Kit includes; water pump housing and base, impeller, wear plate, O-rings, seal and gaskets
  • Fits Mercury applications

The Sierra Engine Parts Selector

In addition to water pump kits, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see our Engine Parts Selector, where you can search by engine make, serial number and model or year of manufacture.

ApplicationOEM Part Number
Mercury Marine46-77177A3


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